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Law constant for CO2 at 38 degrees Celsius is 2.28 x 10^-3 mol/l atm . Calculate the pH of a solution of CO2 at 38 degrees Celsius in equilibrium with the gas at a particular pressure of 3.55 atm.
Describe clearly why a single indicator solution in only useful for measuring pH over a rather narrow range. Use a specific indicator of solution
Calculate the pH at the following points a. Before Titration b. After the addition of 5.00mL of NaOH c. After the addition of 25.00mL of NaOH d. After the addition of 50.00mL of NaOH e. After the addition of 5.00mL of NaOH
what is the longest wavelength of radiation that possesses the necessary energy to break a nitrogen bond.
Suppose that the gas in a storage tank exerts a pressure of 55.125 lb/in2 . What is the pressure of the gas in units of torr?
A 100.0-mL buffer solution is 0.175M in HCIO and 0.150M in NaCIO .What is the pH after addition of 150.0mL of HBr?
A 29.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
4.236-g sample of a hydrocarbon (CxHy) is combusted in O2 completely to give 3.810 g of H2O and 13.96 g of CO2. What is the empirical formula of the hydrocarbon?
If 42.0 g of CO and 27.0 g of H2O are placed in a 5.0 L flask with 132 g of CO2 and 6.0 g of H2 and allowed to reach quilibrium, what will the concentration of CO be when the system finally reaches equilibrium?
The iron content of an ore can be determined by a redox titration using K2Cr2O7 as the titrant. A sample of the ore is dissolved in concentrated HCl using Sn2+ to speed its dissolution by reducing Fe3+ to Fe2+.
The lipid formed an emulsion when mixed with oil and water, reacted with aqueous sodium hydroxide to form soap, did not react with bromine, and gave a positive result for the ammonium molybdate test. Describe a lipid structure consistent with thes..
It decomposes into its elements. Write the balanced equation for this reaction. If 71.8 g of Hgo is decomposed, calculate the volume of oxygen at STP
Using curved arrows to show the flow of electrons and being careful to balance mass and charge for each step, provide a mechanism for the reaction below that show how both products are formed
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